Hadoop Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Apache Hadoop (394)
MapReduce (354)
Apache Hive (345)
Apache Pig (225)

Apache Ambari (93)
Apache HCatalog (34)
Apache HDFS Hadoop Distributed File System (214)
Apache Kafka (189)

Hadoop Interview Questions

Questions Answers Views Company eMail

Define Partition in Apache Spark?

326

How many types of Transformation are there?

328

How you can remove the element with a critical present in any other Rdd is Apache spark?

325

What is Sparse Vector?

358

Is it possible to run Spark and Mesos along with Hadoop?

285

What is DataFrames?

384

Discuss writeahead logging in Apache Spark Streaming?

344

How can data transfer be minimized when working with Apache Spark?

308

What do you mean by Speculative execution in Apache Spark?

312

Explain about the different cluster managers in Apache Spark

352

Explain Spark Executor

293

Explain the level of parallelism in Spark Streaming? Also, describe its need.

347

What are the various storages from which Spark can read data?

358

What is a Sparse Vector?

356

What is the difference between Caching and Persistence in Apache Spark?

337

Un-Answered Questions { Hadoop }

What does consumer api in kafka?

550

What are the particular functionalities of Ganglia in Ambari?

Define the difference between hive and hbase?

172

Can you list some useful zookeeper tools?

Who is the founder of spark?

326

What is the use of "order by" in Hive?

1017

Hive new version supported Hadoop Versions ?

647

Where do you specify the Mapper Implementation?

1058

What is hbase in hadoop?

694

What is SSTable? How is it different from other relational tables?

122

What are the different composite keys in Cassandra?

What is the replica placement Strategy in Cassandra ?

What is SequenceFileInputFormat in Hadoop MapReduce?

672

Give some important features of SPM?

101

What are the advantages of DataSets?

307

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